Home / 140,769.58-194,265.18-80,339.02

Finding the Fourth Proportional to 140,769.58, 194,265.18 and 80,339.02

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Solution

The fourth proportional to 140,769.58, 194,265.18 and 80,339.02 is: 110,869.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,769.58 : 194,265.18 = 80,339.02 : x
  2. Step 2: Convert to fraction form
    140,769.58/194,265.18 = 80,339.02/x
  3. Step 3: Cross multiply
    140,769.58x = 194,265.18 × 80,339.02
  4. Step 4: Simplify right side
    140,769.58x = 15,607,074,181.32
  5. Step 5: Solve for x
    x = 15,607,074,181.32/140,769.58
  6. Step 6: Final answer
    x = 110,869.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.